[inspector] Support multiple sessions per context group

src/inspector/injected-script.cc

Index: src/inspector/injected-script.cc
diff --git a/src/inspector/injected-script.cc b/src/inspector/injected-script.cc
index 8f0eee16baf5f8412d4dafe2f0f44498f9eae133..e46fbc3872322dcac8552d83d3b768281fa69857 100644
--- a/src/inspector/injected-script.cc
+++ b/src/inspector/injected-script.cc
@@ -428,7 +428,8 @@ InjectedScript::Scope::Scope(V8InspectorSessionImpl* session)
 
 Response InjectedScript::Scope::initialize() {
   cleanup();
-  V8InspectorSessionImpl* session = m_inspector->sessionById(m_sessionId);
+  V8InspectorSessionImpl* session =
+      m_inspector->sessionById(m_contextGroupId, m_sessionId);
   if (!session) return Response::InternalError();
   Response response = findInjectedScript(session);
   if (!response.isSuccess()) return response;